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KatRina [158]
3 years ago
12

You might need: Calculator

Mathematics
1 answer:
Rufina [12.5K]3 years ago
8 0
A=3.14(2^2)
A=12.56 m^2
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Vikki [24]

Answer:

I would do C tbh

8 0
3 years ago
Read 2 more answers
What is the product (9t-4)(-9t<br> -4)
r-ruslan [8.4K]
Hey Tro2, 

Lets find the product of your equation together, 

The question we are encountering is : What is the product (9t-4)(-9t<span>-4)? 

          Lets simplify this step by step, shall we. 

\left(9t-4\right)\left(-9t-4\right)   : Equation 

           \mathrm{Distribute\:parentheses\:using}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd. 

Where : a=9t,\:b=-4,\:c=-9t,\:d=-4 .

This leads to 9t\left(-9t\right)+9t\left(-4\right)-4\left(-9t\right)-4\left(-4\right). 

Now we have to \mathrm{Apply\:minus-plus\:rules}. 

</span>Where: -\left(-a\right)=a,\:\:\:\:+\left(-a\right)=-a 

-9t\cdot \:9t-9t\cdot \:4+4\cdot \:9t+4\cdot \:4 

=-81t^2+16

7 0
4 years ago
Read 2 more answers
Round 23.5481 to the nearest thousandth
NemiM [27]

Answer: 23.548

Step-by-step explanation: The thousandths place is 3 places to the right of the decimal point so in this problem, the digit in the rounding place is 8.

The rules of rounding says that if the digit to the right of the rounding place is greater than or equal to 5, we round down but if the digit to the right of the rounding place is less than 5, we round down.

Since the digit to the right of the rounding place, 1, is less than 5, we round down. This means that the digit in the rounding place which is 8 stays the same and we change all digits to the right of 8 to zero.

So we have 23<em>.</em>5480.

Finally, it's important to understand that when rounding decimals, we can drop any zeroes to the right of the decimal point as long as they're also to the right of the rounding place.

This means that 23.5481 rounded to the nearest thousandth is 23<em>.</em>548.

5 0
4 years ago
Can anyone help please
nydimaria [60]

Answer:

The anwser is B

Step-by-step explanation:

yes, because you need to convert the repeating number into a decimal. In this case, you can assume that x is the fraction form of 0.7 repeating.

3 0
3 years ago
Help me pls besties ASAP thank you:)
Novosadov [1.4K]

Answer:

hey bestie its B

Step-by-step explanation:

3 0
3 years ago
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